Squarish means roughly square — square enough that 'square' is the word you reach for, but not so exactly square that you want to commit. A squarish room, a squarish face, squarish glasses, a squarish package. The -ish is doing real work here: it is the speaker admitting they are estimating. It is casual and friendly, the kind of word you use when describing something you saw rather than something you measured, and for that reason it belongs in speech and everyday writing, not in a technical description where you would give the actual dimensions. It can describe the outline of a thing (a squarish window) or the overall build of a thing (a squarish man — meaning broad and solid rather than literally four-sided). Because -ish attaches so freely in English, you will meet a whole family of these: roundish, longish, greenish, tallish. Learning squarish really means learning that pattern.

方方的；有點四方形的。「差不多是正方形，但沒那麼標準」，語氣是隨口估計，不是精確描述。